【文件属性】：
文件名称：给图片加水印
文件大小：49KB
文件格式：ZIP
更新时间：2016-03-31 03:53:32
加水印源码
可以轻松给图片加文字水印
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.IO;
namespace WindowsApplication7
{
public partial class FrmAddWave : Form
{
public FrmAddWave()
{
InitializeComponent();
}
private void MakeWaterMark(string IconImg)
{
//定义输出位图
Bitmap bmp = new Bitmap(1000, 700);
//定义绘图对象
Graphics g = Graphics.FromImage(bmp);
//描述绘图矩形区域
Rectangle newRect = new Rectangle(0, 0, 1000, 700);
//设置背景色
g.FillRectangle(new SolidBrush(Color.White), newRect);
//获取要生成水印的图片
Bitmap newBitmap = new Bitmap(IconImg);
g.DrawImage(newBitmap, 16, 16);
//定义水印字的字体
Font font = new Font(
"Arial",
12,
FontStyle.Bold
);
//定义水印字的格式刷
LinearGradientBrush brush = new LinearGradientBrush(
new Rectangle(600, 600, 71, 23),
Color.Red,
Color.Blue,
30f,
true
);
//给照片打上水印
g.DrawString("copyright by test. " + System.DateTime.Now.ToShortDateString(), font, brush, 0, 0);
//保存为新的输出图片
System.IO.MemoryStream ms = new System.IO.MemoryStream();
bmp.Save(@"c:\a1.jpg", ImageFormat.Jpeg);
////输出图片
//Response.ClearContent();
//Response.ContentType = "image/jpeg";
//Response.BinaryWrite(ms.ToArray());
}
private void button1_Click(object sender, EventArgs e)
{
string strsavepath = txtsavepath.Text.ToString();
string strfilepath =textBox1.Text;
if (textBox2.Text.Trim() == "")
{
MessageBox.Show("请输入要显示的文字");
textBox2.Focus();
return;
}
if (textBox1.Text.Trim() == "")
{
MessageBox.Show("请选择要处理的图片路径,图片必须是JPG格式");
return;
}
if (txtsavepath.Text.Trim() == "")
{
MessageBox.Show("请选择处理后的图片保存路径");
return;
}
if (textBox1.Text == strsavepath)
{
MessageBox.Show("处理后的图片保存目录不能和原目录相同");
txtsavepath.Text = "";
return ;
}
try
{
string[] font1 = txtfont.Text.Split(',');
DirectoryInfo TheFolder = new DirectoryInfo(textBox1.Text);
//遍历文件夹
int count = TheFolder.GetFiles().Length;
int scount = 1;
if (count > 0)
{
pb1.Maximum = count;
pb1.Minimum = 1;
pb1.Visible = true;
}
//遍历文件
foreach (FileInfo NextFile in TheFolder.GetFiles())
{
pb1.Value = scount;
string[] p1 = NextFile.Name.ToString().Split('.');
if (p1[1].ToString().ToLower() == "jpg" || p1[1] == "jpeg")
{
Makewatermark(NextFile.FullName,
strsavepath + "\\" + NextFile.Name.ToString(), textBox2.Text, font1[0].ToString(), float.Parse(font1[1]));
}
scount++;
}
MessageBox.Show("处理完成！");
pb1.Visible = false;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public void Makewatermark(string FilePath, string SavePath, string watermarkText,string fontname,float fontsize)
{
try
{
System.Drawing.Image image = System.Drawing.Image.FromFile(FilePath);
int x = image.Width;
int y = image.Height;
Graphics g = Graphics.FromImage(image);
g.DrawImage(image, 0, 0, image.Width, image.Height);
Font f = new Font(fontname, fontsize );
Brush b = new SolidBrush(Color.Red );
string addText = watermarkText.Trim();
//g.DrawString(addText, f, b, x - 500, y - 50);
g.DrawString(addText, f, b, x /4, y /2);
g.Dispose();
image.Save(SavePath);
image.Dispose();
//if (File.Exists(SavePath))
//{
// File.Delete(SavePath);
//}
}
catch (Exception ex)
{
throw ex;
}
}
private void butpath_Click(object sender, EventArgs e)
{
if (folderBrowserDialog1.ShowDialog() == DialogResult.OK )
{
textBox1.Text = folderBrowserDialog1.SelectedPath;
}
}
private void butsave_Click(object sender, EventArgs e)
{
if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
{
txtsavepath.Text = folderBrowserDialog1.SelectedPath;
}
}
private void button2_Click(object sender, EventArgs e)
{
if (fontDialog1.ShowDialog() == DialogResult.OK)
{
txtfont.Text = fontDialog1.Font.Name.ToString()+","+
fontDialog1.Font.Size.ToString();
}
}
private void button3_Click(object sender, EventArgs e)
{
this.Close();
}
}
}
【文件预览】：
WinAddWave
----WinAddWave.sln(930B)
----WindowsApplication7()
--------bin()
--------Form1.Designer.cs(10KB)
--------Program.cs(483B)
--------obj()
--------Form1.cs(7KB)
--------Form1.resx(6KB)
--------ProjAddWave.csproj(3KB)
--------Properties()
----WinAddWave.suo(15KB)